Lately, my check engine light has been coming on. However, it is not staying on. I will get in my car and start driving and it will just come on out of nowhere. I'll get to where i'm going, turn the car off and when i get in my car to leave again, the light will be off. I'll start driving again and the light might decide to turn on or i can sometimes make it to wherever without a problem. Any clue as to what it can be?